The acr.chm file is an essential part of a particular parasite and therefore is responsible for the pest's malicious activity. Exact purposes of acr.chm depend on the related parasite's type and carried payload. Some threats can use acr.chm to serve annoying pop-up advertisements or store certain configuration settings, while others need it to corrupt files, steal user confidential information or run a spreading routine. In any case, DO NOT open this file!
The acr.chm file is installed and used by keylogger
Advanced Call recorder and keylogger
Advanced Keylogger.
In some cases a presence of acr.chm does not mean that your system is infected. The file may actually belong to some fully legitimate applications and therefore must stay intact. If you are in doubt, please scan the acr.chm file using you regular spyware remover or antivirus program.
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